RANKING · 2010 CENSUS · 88 SHOWN OF 88

Oldest by median age, Ohio counties · 2010

Ohio counties ranked by median age of residents (2010 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Noble County, OHOH14,27648.6+37%

02Ottawa County, OHOH39,48146.3+13%

03Monroe County, OHOH12,99444.7+10%

04Harrison County, OHOH14,07044.4+8%

05Jefferson County, OHOH63,59743.9+6%

06Belmont County, OHOH64,43443.4+6%

07Erie County, OHOH73,29643.4+10%

08Geauga County, OHOH95,67643.3+12%

09Carroll County, OHOH26,47543.1+11%

10Washington County, OHOH58,38943.0+10%

11Mahoning County, OHOH224,70642.9+8%

12Trumbull County, OHOH198,97242.8+10%

13Morgan County, OHOH13,62642.4+9%

14Columbiana County, OHOH99,37742.3+10%

15Lake County, OHOH232,21742.3+10%

16Crawford County, OHOH41,89641.9+10%

17Meigs County, OHOH21,58741.2+7%

18Stark County, OHOH373,77141.1+8%

19Ashtabula County, OHOH96,71341.0+9%

20Guernsey County, OHOH38,37940.9+8%

21Hocking County, OHOH27,51240.9+8%

22Preble County, OHOH40,66440.9+9%

23Richland County, OHOH124,89340.9+8%

24Tuscarawas County, OHOH92,37340.9+8%

25Coshocton County, OHOH37,18840.8+8%

26Darke County, OHOH51,52040.8+9%

27Williams County, OHOH36,54940.7+10%

28Miami County, OHOH112,63440.6+8%

29Clark County, OHOH135,34040.5+8%

30Wyandot County, OHOH21,56740.5+8%

31Medina County, OHOH185,02540.4+10%

32Sandusky County, OHOH58,65540.4+8%

33Van Wert County, OHOH29,01340.3+7%

34Cuyahoga County, OHOH1,232,92540.2+8%

35Lawrence County, OHOH55,71040.1+7%

36Auglaize County, OHOH45,90940.0+10%

37Lorain County, OHOH323,21940.0+10%

38Paulding County, OHOH18,72740.0+10%

39Summit County, OHOH538,37640.0+8%

40Brown County, OHOH44,39739.9+13%

41Fulton County, OHOH41,85339.9+11%

42Gallia County, OHOH29,07239.9+7%

43Marion County, OHOH65,11539.9+7%

44Logan County, OHOH46,30239.9+8%

45Henry County, OHOH27,59839.8+9%

46Ross County, OHOH76,42939.8+8%

47Champaign County, OHOH38,82039.7+7%

48Adams County, OHOH27,86539.6+9%

49Vinton County, OHOH12,64539.6+12%

50Morrow County, OHOH36,30539.5+8%

51Muskingum County, OHOH87,01439.5+8%

52Defiance County, OHOH38,29239.4+8%

53Fayette County, OHOH28,55239.4+5%

54Mercer County, OHOH42,73739.4+10%

55Ashland County, OHOH52,52339.3+8%

56Highland County, OHOH43,82339.2+9%

57Montgomery County, OHOH539,59839.2+8%

58Pike County, OHOH27,06139.2+11%

59Madison County, OHOH46,98539.1+9%

60Licking County, OHOH185,56439.1+7%

61Jackson County, OHOH32,81739.0+7%

62Putnam County, OHOH34,38039.0+11%

63Scioto County, OHOH71,36538.8+6%

64Seneca County, OHOH54,52238.8+7%

65Clinton County, OHOH42,30138.7+10%

66Perry County, OHOH35,91838.6+10%

67Clermont County, OHOH216,97738.5+11%

68Hancock County, OHOH75,03438.5+7%

69Pickaway County, OHOH62,97838.5+7%

70Huron County, OHOH58,25038.4+10%

71Allen County, OHOH100,88138.3+6%

72Knox County, OHOH64,00238.3+5%

73Wayne County, OHOH116,75838.3+8%

74Fairfield County, OHOH169,75238.2+6%

75Shelby County, OHOH48,06537.9+9%

76Warren County, OHOH257,18137.8+7%

77Delaware County, OHOH242,03237.4+6%

78Portage County, OHOH163,40437.4+9%

79Greene County, OHOH174,32237.2+4%

80Hamilton County, OHOH838,41837.1+5%

81Lucas County, OHOH423,34737.0+6%

82Union County, OHOH73,44636.4+6%

83Butler County, OHOH400,12836.0+5%

84Wood County, OHOH134,17635.3+8%

85Hardin County, OHOH30,07234.7+4%

86Franklin County, OHOH1,361,53633.4+3%

87Holmes County, OHOH44,97029.7+6%

88Athens County, OHOH63,19726.3+2%

SHOWING 1–88 OF 88

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS